Penguin Peptides
Tirzepatide
Finnrick tested 4 samples of Tirzepatide (GLP-1 and GIP agonist) from Penguin Peptides between 23 Oct 2025 and 1 Jun 2026. Test scores average over 6, no score below 5, and at least 2 tests warrant a tentative Finnrick Rating of B (Good).
Finnrick Rating™
Tentative Rating
Penguin Peptides
Tirzepatide
Tested 4 Samples
Last test 1 Jun 2026
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Samples are tested in commercial labs
Tests Count
4
Scores
AVGMINMAX
Last
1 Jun 2026
First
23 Oct 2025
| Quantity | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Test Score | Label | Tested | Difference | Purity | Endotoxins | Batch ID | Container | Tested At | Sent By |
| 1 Jun 2026 | View | 60mg | 59.6mg | -0.7% | 99.90% | below LOQ | (no batch ID) | White label / Copper crimp / Clear cap | Lab E | Public | |
| 4 Mar 2026 | View | 5mg | 4.96mg | -0.8% | 98.90% | n/a | (no batch ID) | White Label / Silver Crimp / Blue Cap | Lab E | Public | |
| 19 Jan 2026 | View | 5mg | 5.09mg | +1.8% | 99.95% | n/a | (no batch ID) | White Label / Silver Crimp / Blue Cap | Lab E | Public | |
| 23 Oct 2025 | View | 50mg | 53.6mg | +7.2% | 99.95% | n/a | (no batch ID) | White Label / Silver Crimp / Red Cap | Lab E | Public | |